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Conference Paper

Design and Electroacoustic Analysis of a Piezoelectric MEMS In-Ear Headphone

Authors: Männchen, Andreas; Stoppel, Fabian; Brocks, Tobias; Niekiel, Florian; Beer, Daniel; Wagner, Bernhard

AES Conference: 2019 AES INTERNATIONAL CONFERENCE ON HEADPHONE TECHNOLOGY · Paper 14 · August 2019

Abstract

This article takes an in-depth look at an in-ear headphone demonstrator with a piezoelectric MEMS driver. The MEMS transducer and the demonstrator system including earphone enclosure, signal processing, and application-speci?c ampli?er are described. The main focus of this study lies on an exhaustive electroacoustic analysis of a MEMS earphone, comprising an electrical impedance measurement, various acoustical measurements, and an investigation of the thermal behavior of piezoelectric MEMS drivers. The results show the high potential of this technology for in-ear applications and promise even greater acoustic performance with future improvements.

Details

Published in
AES Conference: 2019 AES INTERNATIONAL CONFERENCE ON HEADPHONE TECHNOLOGY
Paper number
14
Publication date
August 6, 2019
Affiliation
Fraunhofer Institute for Digital Media Technology IDMT, Ilmenau, Germany; Fraunhofer Institute for Silicon Technology ISIT, Itzehoe, Germany (See document for exact affiliation information.)
Type
Conference Paper